Fatal error: Uncaught Error: Interface "GuzzleHttp\Promise\TaskQueueInterface" not found in /home/maborneapp/public_html/sii/vendor/guzzlehttp/promises/src/TaskQueue.php:14
Stack trace:
#0 {main}
thrown in /home/maborneapp/public_html/sii/vendor/guzzlehttp/promises/src/TaskQueue.php on line 14